1/4" Round Spacer

A Spacer is a fastener that is used to create space between two
objects, often to properly position them. In the world of electronic
components and electronic hardware, spacers are typically used to
space circuit
boards, panels, doors or gears. Spacers can be round or hexagonal in
shape and can have swage characteristics. Spacers have no interior
threading and come in a variety of materials including aluminum,
brass,
plastic, steel and stainless steel.